Package-packer.



.A. K; ROBBINS.

PACKAGE PACKER- APPLICATION FILED we. 25, 1910.

Patented Apr. 25, 1911.

A TTORNE Y 8 rm: Nnmus PEIERS ca., wnsnmamu, n. c.

PACKAGE-PAGKER.

Specification of Letters Patent.

Patented Apr. 25, 1911.

Application filed August 25, 1910. Serial No. 578,969.

To all whom it may concern:

Be it known that I, ALFRED KAILE ROB- nms, a citizen of the UnitedStates, and a resident of Cobleskill, in the county of Sohoharie andState of New York, have invented a new and Improved Package-Packer, ofwhich the following is a full, clear, and exact description.

This invention relates to certain improvements in machines for use infilling packages with granular, pulverulent, crystalline or othersimilar material, and one object of the invention is to provide for theautomatic stopping of the delivering mechanism when the package isfilled to the required extent.

The machine is so constructed that it works with great accuracy andspeed, and cannot readily become clogged. The mechanism is comparativelysimple, so that the machine may be manufactured and sold at acomparatively low price, and cannot readily get out of properadjustment.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in both views, and in which- Figure 1 is a sideelevation of a machine constructed in accordance with my invention, aportion of the delivery funnel being broken away; and Fig. 2 is a frontelevation of the machine, certain of the parts being shown in a secondposition in dotted lines.

In the specific form of machine illustrated in the accompanyingdrawings, I provide a suitable frame, which includes a platform or table10, mounted on suitable legs 11, and an upper or top portion 12supported on suitable standards 13. Suspended from the top portion 12 ofthe frame, I provide a container 1 1, in the form of a hopper andadapted to receive the material to be delivered to the packages. Thiscontainer terminates at its lower end in a delivery nozzle 15, withinwhich there is mounted a screw conveyer, rotatable about a verticalaxis. The conveyer is so formed that when stationary, it effectivelyprevents the escape of the material through the nozzle, but whenrotated, serves to feed the material from the container through thenozzle. The screw is rotated by a shaft extending up through thecontainer and having at its upper end a bevel gear 17 intermeshing witha bevel gear 18, on a drive shaft carried by the upper portion of theframe. This drive shaft may be rotated in any suitable manner from anysuitable source of power, and is provided with a clutch for stopping andstarting the drive shaft. The details of this driving mechanism areunimportant, and have not been illustrated in detail, but preferablythere is employed a loose pulley 19, over which a drive belt 20 extends,and this pulley may be locked to the drive shaft by a suitable clutchcollar 21, controlled by a lever 22. The lever is pivoted intermediateits ends and connected by a rod 23 to a bell crank lever 24. Theopposite arm of the bell crank lever is connected to a vertical slide 25on the frame, and this slide is connected to a lever 26, by means ofwhich the slide may be reciprocated. A spring 27 normally tends to holdthe slide in raised position and the clutch in its inoperative position.

Extending up through the table or platform 10 is a vertical plunger 28,terminating at its upper end in a plate 29, which serves to support thepackage to be filled. This plunger is normally held in its upperlimiting position by means of a lever 30 pivoted to the plunger and tothe frame, a lever 31, supported by link 32 from the table, a link 33,connecting the two levers, and a weight 34 suspended from one end of thelever 31. As will be readily seen, the downward movement of the plunger28 lowers the lever 30 and the link 33, and pulls down on one end of thelever 31 so as to raise the weight. The position of the weight on thelever may be varied in accordance with the weight of the package to befilled.

Pivoted to the frame is a lever ember 35, normally held in an upperlimiting position by a spring 36, and having a free end extendingadjacent the plunger 28. On this plunger is an adjustable bracket 37,carrying at its lower end a roller 38 engaging with the upper side ofthe member 35. The slide 2, previously referred to, has an arm 39 extending adjacent the side of the lever member 35 and adapted to enter arecess in the vertical edge of the latter. The plunger 28 has a catch 40on the side thereof, and pivoted to the lower portion of the frame is acatch 41, which may engage with this catch 40 and hold the plunger inlowered position. The catch a1 is connected to the slide 25 by a rod 42,so that the catch will be operated by the reciprocation of the rod.

To prevent the material from clogging adjacent the upper end of theconveyer 15, I

may provide a scraper 43 in the form of a piece of metal, one end ofwhlch 1s riveted to the conveyer, and'the opposite end or which extendsadjacent the inclined bottom of the hopper. i

The operation of the machine is substantially as follows :--lVhen theparts are at rest, they are normally in the position indi cated indotted lines in the drawings; that is,'the support 29 for the package orcarton is in lowered position, and the catch 41 en gages in the catch 10to hold the plunger 28 in its lowered position. The spring 27 holds theslide in its raised position, with the clutch 21 "out of operation. Whenit is desired'to fill a package, an empty container in its loweredposition during thefilling of the carton bythe engagement of the arm 39with the recess in the side of the member As the material is deliveredto the carton by the screw, the carton is forced downwardly, not only bythe pressure of v the material, but also by the weight of this materialcounteracting the weight 34. The machine is so adjusted that when thecarton is filled to the required extent, the roller 38 will have pressedthe lever member 35 downwardly to release the arm 39 and permit thespring to raise the slide 25 and the handle 26 and disengage the clutch.At the same time, the upward movement of the slide will bring"'the'catchl over into position so as to engage above the catch 40 andhold the plunger 28 in its lowered position. The filled carton is thenremoved and an empty one placed on the platform, ready for therepetition of the operation.

The position of the roller 38 may be adjusted at will, so as to releasethe slide 25 at any desired time. The catch 41 may be adjusted orreplaced by a longer or shorter one, to insure its proper engagementwith the catch 10, to hold the plunger in its lowcred position. 7

Various changes may be made in the construction and operation of themachine without departing from the spirit of my inven tion.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1. A package filling machine, comprising a containerhavinga delivery nozzle, a screw conveyer in the nozzle of thecontainer, means for operating the screw conveyor, a clutch forcontrolling the operating means,

a vertically slidable support below the noz zle of the container, alever mechanism con nected with the support and having an adjustableweight on one of its members, a sliding clutch operating member, meanscontrolled by the support for locking the clutch operating member, andmeans controlled by the clutch operating member for locking the supportin its lowermost position.

2. A package filling machine, comprising a container having a deliverynozzle, a feed device in the delivery nozzle, means for operating thefeed devlce, a vertically sliding plunger having a plate on its end, alever pivoted at one end and having its other end pivoted to theplunger, a pivoted lever provided with an adjustable weight, a linkconnecting the said levers, a sliding member controlling the operatingmeans of the feed device, a pivoted and spring pressed lever for lockingthe said sliding member, and means on the plunger for engaging the saidspring pressed lever to release the sliding member.

3. In a package filling machine, the combination with a container, afeed device in the container, means for operating the feed device, and asliding and spring actuated mem her for controlling the operating means,of a plunger below the container and carrying a support at its upperend, a lever pivoted at one end and having its other end pivoted to theplunger, a lever pivoted intermediate of its ends and having anadjustable weight on one end, a link connecting the levers, a pivotedand spring pressed lever for locking the sliding member which controlsthe operating means, means on the plunger for engaging the said lever, apivoted and spring pressed catch for engaging the plunger to hold it inits lowermost position, and a coilnection between the catch and the saidsliding member.

4. In a package filling machine, the combination with a container, afeed device in the container, means for operating the feed device, and asliding and spring actuated member for controlling the operating means,said member being provided with an angular arm, of a plunger below thecontainer and carrying a support on its upper end and provided with aprojection intermediate of its ends, a lever pivoted at one end andhaving its other end loosely pivoted to the plunger, a lever pivotedintermediate of its ends and carrying an adjustable weight, a linkconnecting the levers, a pivoted and spring pressed angular leverprovided with a recess in one member engaged by the arm of the slidingmember, a roller on the plunger and engaging the angular lever, apivoted and spring pressed catch adapted to engage the projection of theplunger, and a connection between the catch and sliding member.

5. In a package filling machine, the combination of a container, a feeddevice in the container, means for operating the feed device, a slidingand spring actuated member for controlling the operating means, avertically slidable support below the con tainer a lever mechanismconnected with the support and having an'adjustable weight on one of itsmembers a locking device controlled by the support for locking thesliding member, and a locking device for the 10 support controlled bythe sliding member.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

ALFRED KAPLE ROBBINS.

Witnesses:

NM. H. GoLDING, LILLIAN W. KLING.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

